Nut-making machine.



C. E. SLYKE.

NUT MAKING MACHINE.

APPLlcAloN FILEDJUNE19-19ie.

Patented Nov. 5, 191%,

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Ca E. SLYKE.

NUT MAKING MACHINE.

APPUC'MION HLED1uNE|9.191e.

Patented Nov. 5, EN@

8 SHEE15-SHEEIA.

C. E. SLYKE.

NUT MAKING MACHINE. APPLICATION HLEn1uNE19.|9xe.

Faltented Nov. 5, 1918,

8 SHEETS-SHEET 5.

C. E. SLYKE.

NUT MAKJHNG MACHINE.

APPLlcAxoN FILED JUNE I9. 191e. M9393, 1mm Nov. 5, mm.

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NUT MAKING MACHINE.

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C. E. SLYKE.

v Nur MAKING MACHINE, l PPUCATON FLED )UNE 19, 1916- T l Sgn Patented Nov. 0,1918.

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tpeeiication of Letters Patent.

patenten nov. a, fais.

To all whom may concern.' f4

Be it 4known that ll, CHARLES E. Snrnn, a..

citizen of the lUnited States, and a resident of the city of Indiana Harbor, county ofI Lake, and State of lndiana, have invented certain new and useful Improvements in` Nut-Making Machines, of which the fol-- lowing is a specification.

My invention relates to improvements in nut-making machines, and has for its object the provision of an improved machine of this character adapted to automatically form nuts with great rapidity and with great economy of material.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed. v

The invention will be best understood by reference to the accompanyingdrawings forming a part of this specification, and in which:

Figure 1 is a topplan view, with one corner broken away, of a machine embodying my invention,

Fig. 2, an end view of the same,

Fig. 3, a side view of the same,

. Fi gi 4, a partial side view, shown partially in section, showing a portion of the side of the machine opposite to that illustrated in Fig. 3,

Fig. 5, a transverse section of the ma chine, f

Fig. 5A, a detail view ofja shear lrnife employed inthe machine,

Fig. 6, a top plan view of a yoke employed in the machine, y

Fig. 7, a substantially central longitudinal section of the machine, showing the parts in initial or starting position. y

Fig. 8, a bottom plan View of a plunger operating carriage employed -in the ma- Fig. 9, a longitudinal section of themachine, taken partially on a slightly did'erent plane from that of Fig. 7 and showing the parts in the positions occupiedjust before f completion of a nut therein,

Fig. 10, a'bottom plan view of a die head operating carriage -employed in the machine,

Fig. 11, a lview similar to Figs.- 7 and S), but taken partially on a slightly different plane from elther and showin the positions of theparts at the timeoft e completion of a nut in the machine,

Fig. 12, an end View of the carriage shown in Fig. l0,

Fig. i3 is la side view of a nut completed in the machine,

.Fig 14, atransverse section `of the niachine illustrating the c am arrangement onthe master shaft thereof,

Figs. l5 and 16,side and end views re spectively of one form o fsbar from which l nuts may bemade,

, Figs. 17 and 18, a side `and end-view respectively of another form of rod from whlch nuts may loe made,

Figs. 19 and 20, a side and end view respectively of another form of bar,

. Figs, 2l and 22, a side and end-view respectively of another form of bar, and

Fig. 23, a detail view4 showing a slightly Inodied form of construction of one ofthe cam membersA employed on the master shaft of the machine. 'lhe preferred form of construction, as

lillustrated in Figs. l to 22 inclusive, comw prises a suitable supporting `frame-24 having feed rollers 25, 26, 27 and 218 mounted above one end thereof.. 'llhe feed rollers 25, 26, 27

.and 23 are arranged in coperatingrpairs,

as indicated, the feed rollers 25 and 27 being each mounted on 'a swinging arm 29 and "yieldingly ,pressed into. cooperating relation with its companion roller by means of a spring 30 whose tension is adjustable by means of a set screwV 3l, as illustratedv in Fig. l. As best shown yin Figs. 2'and 3, the feed rollers 25', v26, 27 and'28 ,are shaped' .to receive andfeed a bar 32 .which is substantially hexagonalV in cross section with the sides thereof scalloped or concaved, as shown 'llhe rollers 25, 26, 27 and 28 are driven by means of gears 33, 34, 33 and 36 intermeshing, as showninFigfl. e Ylhe gears 34 and 36 mesh respectively with gears 37 and 37'; mounted respectively at the upper ends of shafts BS-and 39 on the side of frame 24. As bast shown in Figs. l, 2 'and 3, shafts '38 and 39 carry respectively at their lower ends bevel gears 40 and 41 meshing with bevel gears 42 and 43 respectively on hori- Zonta] shafts 44 and 45. Shafts 44 and 45 are driven respectively by means of ratchet wheels 46 and 47 fired thereto and coperating with pawl arms 48 and 49 loose thereon. Favvl arms 43 and 49 carry spring held 'pawls 50 and 5l coperating with the corresponding ratchet wheels 46 and 47 and are connected together by means of a connecting rod 52 pivotally connected with the upper end of each. @onnecting rod 52 is connect- Fil ldd

4wise secured to a shaft 58 which is the-maspairs. As best shown inFigs. 1 and 3, a tubularguide is arranged between the feed rollers for the proper guidance of bar 32v and another guide 66 is arranged-to position and hold the inner end vof said bar 'against downward tilting. The arrangement is such,-as"will be readily understood, that at each rotation of master shaft 58, .the feed rollers 25, 26, 27 and 28 will be momentarily operated by the action of cam 56 on said master shaft to feed a certain predetermined length or portion of the bar 32 into the machine. The bar 32, before being fed into the machine, is heated to a suitable temperature to render it suiliciently plastic for treatmenttherein', the particular embodiment of the invention set forth being what is known as a hot press nut machine, or amachine which forms the nuts from material rendered plastic by'h'eat.

As best. shown in Figs. 1, 4, 5. andl 7, a hardened vsteel knife plate 67 is fitted in'a cross bar 68 of the frame of the machine in operative relation with the inner end of the bar 32 after each inward feeding thereof, said knife plate being shaped to partially embracesaid bar, 'asindicated A gage `or stop plate 69 is positioned to abut the inner end ofthe bar 32 to limit the inward feed thereof and accurately position the same in the machine after each feed thereof. This gage plate is carried by a stem 70 fitting through an adjusting sleeve 71 and arranged to be locked in. said Sleeve by means of a` nut 72 so that thev position thereof may be nicely adjusted. I A Aknife carrying plate 73 `is provided with a shear knife 74 (shown in detaily in Fig. 5A), said shear knife being provided with a notch 75 adapted to partially embrace the bar 32 and having teeth or serrations 76 in the sides thereof adapted to engage and temporarily hold a severed length of said bar. 'Knife carrying plate 7-3 is secured to a cross head 77 reciprocating vertically in suitableguides 78 on the frame of the machine. Cross head 77 is adjustably connected'by means of connecting rods 79 with across bolt or shaft 80 carried bythe lower vend of a link 81 connected at its upper end with a. crank pin 82 carried by rocker arms 83 keyed to a shaft 84 mounted in the frame of the machine. Shaft 84 carries a rocker arm 85 pivotally connected by means of a link 86 with lugs 87 formed on the end\ of a yoke 88, as best shown in Figs. 4, 5 and 6.

Yoke 88 is mounted to reciprocate in a suitable housing 89 secured to the corresponding side of the frame 24, said yoke reciprocating in guides 90 in said housing, as best shown in Fig. 14. The master sha t 58 carries two cams 91 and 92 operating in the housing 89 which is preferably provided with an oil well, as indicated, for lubrication of the parts. Cams-91 and 92 contact respectively with cam surfaces 93 and 94 on the yoke 88, as best shownin Figs. 4 and 6, the arrangement being sucli'that at each turn of the master shaft 58, the shear knife 74 is caused to reciprocate past the knife 67 to sever a predetermined length 95 from the bar 32. The pressure necessary to effect the shearing olf of the end of the bar 32 will cause the teeth y76 to partially embed themselves in a severed portion and -temporarily hold said severed portion in provided with a passage 98 for the admission ofwater to the interior thereof for cooling purposes. A stationary piercing plunger or punch 99 is mounted centrally and co-axially with respect to the die member96 and is carried by a supporting rod 100 adjustably and rigidly secured in the frame of the machinp by means of nuts 101. 'The rod 100 passes loosely through a passage 102 formed in a carriage 103provided with supporting flanges 104 sliding in guide grooves 105 formed in the frame of the machine. The carriage 103 carries a die head 106 nicely fitting and reciprocating in the die member 96, said die head being provided with a Water passage 107 registering with passage 98 for the admission of water-for cooling purposes. The die" member 106 is yicldingly held in the-position indicated in 97- surrounds the die member 96 which is iso,

nausea arm 108 is provided with a socket or recess 110 adapted to fit the inner end of a threaded strong compression spring 113 is imprisoned between the bracke `112 'and a collar l114 threaded on the ro 111 to permit of adjustment of the tension ofv spring 113. 'llhe tension of spring 113, and the position of the end of the abutment 111 may be further adjusted by meansI of` adjusting screws 115,

as best shown in Fig. 1. `lBy this arrangement, the die head 106 is arranged to yield under pressure relatively to the plunger or punch 99 to finally come to rest against the abutment 111 which will only yieldv but slightly against enormous pressure.

A movable piercing plunger or punch' member 1,16 is mounted in the machine in axial alinement with theplunger 99 but on the opposite side of the pathof travel of the knife 74, as bestshown inlFigs. 7, 9, 11 and 12. '1`he plunger 116 -is carried by a rod 117 threaded at 118 in a carriage 119,

l said rod 117'being provided with an adjust? ing stem 120 for nicely adjusting' the same. As best 'shown in Figs. .7, 8, 10 and 14, the carriage 119 is slidably supported upon supporting flanges 121 `riding upon the side bars 122 ofanother carriage'123 which is mounted' to reciprocate in hangers 124 and 125 in the ,frame of the machine. `As best shown in Figs. 7 and 8, the carriage 119 is pro- A vided with dependinglugs or abutments 126 and 127 rcontacting with cams 128 and 129 fixed to the master shaft 58 ofthe machine,

the arrangement being such that at each revelution of `said master shaft, the carriage 119 will becaused to reciprocate in the vmachine. ][iug 127 is pivotally connected with a hook lever 130 riding upon a support 131 in theframe of the machine and provided with a shoulder 132 arranged to engage a stop 133 on the underside of .carriage 103 and by means of which the inward movement of the carriage 103 is eected upon corresponding movement of the carriage 119.

.'llhe lug 126 is connected by means of a link 134 With the upper end of a rocker. lever 135 held to position by means of a spring 136, the arrangement being such as'- to normally retract theI carriage 119 from movement toward the center of the maf' `chine.

' a As best shown'in JFigs. 9 and 10, the carriage v123 is provided with two corresponding depending lugs or'abutments137 copcam 140 fixed to the master shaft 58. lAbutment 139 is connected by means of. a link 141with the upper end of a rocker lever 142 being adapted to form the crown 146 on the `f head of the nut, as indicated in Fig. 13. 'lhe arrangement is such that as the severed portion 95 of the nut is momentarily held by the knife 74 in registration with the die 96,` the plunger 116 is first advanced to engage saidsevered portion, pressing the same slightly within the die 96 and slightly in denting the saine toremovethe same from the knife upon upward movement thereof. rll`hereupon the die member 144 is caused to advance until it contacts with said severed portion thus reinforcing the punch 116 against` yielding, buckling or breaking under the strain. Then the plunger 116 and the die head 144 are caused to` move simultaneously into the die member 96, forcing the die head 106 outwardly a ainst the resistance of spring 109 until t e position indicated in Fig. 9 has been reached. This p0-V sition marks the limit of the inward movement of the plunger 116, in which position the ends of the plungers 99 and 116 have become embedded in the central portions of thenut and the metal of the nut caused to flow or spread outwardly to nicely fill the die 96 and a small plug or portion of metal 9 5' remaining between the ends of the plungers `99 and 116, as indicated in Fig. 9. 'llhe arrangement of the cams is such that thereupon die heads 144 and 106 are `forced still farther to the right until the lever 108 is brought to bear against the abutment '111, the central plug 95 is stripped from the body of the nut and the nut fully" formed and completed, including the formation of the crown 146 thereon, due to the heavy pressure possible against the abutment 111. Thereupon the parts automatically return to initial position, releasing the completed nutlwhich falls by gravity from the machine. 1n order to revent drawing of the temper of the di ferent tools employed, the usual jets of water (not shown) are applied to the arts of the machine to keep the same su .ciently cool to prevent such drawing and the consequent rapid dei, struction of the tool.

rllhe machine has been illustrated as ein ployin the style of bar illutratediu Figs.

21 an 22, namely a bar of substantially i hexagonal cross section but having scalloped or .eoncaved i sides forming 32 on said bar. '1`he size o as to cause the points or ridges'32 to nicely fit the corresponding angles in the die member 96 whereby the nice positioning of the fsevered portion `of the bar in 'the `die is facilitated. With other shapes of bars, the

points or ridges the bar is such 12 plunger' 116, but under ,proper conditions this willbe found to b'e sufficient. The difl -ferent'forms of-bars illustrated in Figs.15

to -v may alsov be used with 'slight modifications, as will bereadily understood. These different forms of. bars include a strictly hexagonal bar 147, a'square bar 148 and'a 10 -cylindrical bar or rod .149, as shown.

` In the vmodified form of constructionlllustrated in'Fig. 23, in place of the cam 129 arrangedlto perform the inward movement of-'the carria e 119, I substitute'a cam 129 1,5 of slightly di erent shape, saidv cam 129 bemovement of the die heads 144 and 99, thus omitting the'removal of the central plug 95 from the nut.- .In employing the cam 129', the abutment 111 should be vadjusted to contact with and stop the movement of fthe" carriage 103 in the position indicated in Fig. 9., so as to lproduce the crown v146 on the nut and 4nicely shape the same. 'After the discharge of the nut from the machine, the central plug may be removed by other means The 'machine thus constituted is capable of manufacturing nuts'with eat rapidity but of course is-not so desirab e as the-preferred form of the machine above described inasmuch as it leaves an additional operation to be performed on thenuts.

. The nuts may be made i'n the machine set forth with great rapidity and accuracy, substantially without burs or other imperfections which must be subsequently removed,

and with aminimumamount of waste material, the only material wasted being the material removed" in the plug 95,and by nicely adjusting the-machine, this plug may be made comparatively small.

While I have illustrated and described the preferred fdrms of construction for carrying my invention into effect,I these are capable of variation and' modification with,- out vdeparting from the spirit of the invention. -I, therefore, donot wish to be limited to the precise details of construction set forth, but desire to avail myself of such .variations and modifications as comewithin the scope of the appended claims. n

Having described my invention what 'I -claim as new and desire to lsecure by Letters Patent is:

1. -A machine of the class described comrising a frame; a vertically reciprocat-y mg shear knife on said frame; means for feeding a bar to said knife to cut predetermined lengths therefrom; means for temporarily holding the cut-off lengths in said knife; a die positioned under said knifeto register withthe held lengths; and means for forcing said lengths into said die and `compressing them therein, substantially as described.

ing arranged to omit the final loperation o r l Lacasse 2. A machine of the class described com- `prisingna frame; a vertically reciprocating shear ife on saidframe; means for feeding a bar to said knife to cut predetermined lengths therefrom; means on said knife for temporarily vholding the cut-off lengths in said knife; a die positioned under said knife to re ister with the held lengths; and means for orcing said lengthsl into said diev and compressing themtherein, substantially as described.I

3. A machine-of the class described comprising a frame; a reciprocatin shear knife on said frame; means for feeding a bar to said knife to cut predetermined lengths therefrom; means for temporarily holding the cut-ofi'l lengths in said knife; a die positioned to register with the held lengths; a stationary piercing plunger arranged centrally in said die; a yielding die head surrounding said plunger in said die; a movable piercing plunger arranged to force said lengths from said knife into said die and cooperating with said stationary plunger to embed their ends therein; a coperating movable die head surrounding said movable plunger arranged to enter said die andcompress said lengths; and means for simulta neously moving said die heads relatively to sald plungers, substantially as described.

4. A machine vof the class described comprising a frame; a reciprocating shear knife on said frame; means forfeeding a bar to said knife to cut predetermined lengths therefrom; means for temporarily holding the cut-off lengths in said knife; a die positioned to register with the held lengths; a stationary plercing plunger arranged centrally in said die; a yielding die head surrounding said plunger in said die; a movable piercing plunger arranged to' force said lengths from said'knife into said die and coperating'with said stationary plunger to Vembed their ends therein; a coperating movable die head surrounding said movable plunger arranged to enter said die and compress .said lengths; an abutment arranged to limit the movement of said yielding'die head; and means for simultaneously moving said die heads relatively to said plungersto effect contact between said yielding die head and said abutment, substantially as described. V

5. A downwardly operating knife for ma chines of the class described shaped to partially embrace a rod being cut thereby; horizontal teeth in the embracing sides of said' knife arranged to temporarily hold a length cutoff thereby but permit of lateral removal thereof; and a plunger arranged to contact with a side of said'length and force it from said knife, substantially as described.

`6. A machine of the class described com' prising a frame; a reciprocating shear knife on said frame, saidknife being shaped to taeaeee ya partially embrace a rod being cut thereby;

vteeth in the sides of said knife arranged to temporarily hold a length out od thereby; means for feeding `bar to said knife to cut predetermined lengths therefrom; a ,die positioned to register with the held lengths; means for torcingsaid lengths into said die; and means for compressing the central por tions of said len tbs to cause spreading thereof to ll the (die and torm portions ot an opening therethrough, substantially as described.-

7. A machine oi the class described comprisinga vtrame; a reciprocating shear knife on said trame, said knife being shaped to partially embrace a rod being cut thereby; teeth `in the sides `of said knife arranged to temporarily hold a length cut ofi' thereby;

means `for feedinga bar to said knife to out predetermined lengths therefrom; a die positioned to reigister with the held lengths; a stationary piercing plunger arranged centrally yin said die; a yielding 4die head surrounding said vlunger in said die; a movable piercing p unger arranged to force said lengths from said 'knife into saiddie and cooperating vvith said stationary plungerY to embed their ends therein; a cooperating f movable die head surrounding said movable plunger arranged to enter said die and compress said lengths; 4an abutment arranged to limit the movement of said yielding die head; and means tor simultaneousl ing said die heads relatively to said p ungers to e'ect contact between said yielding die head and said abutment, substantially as described.

48. A machine of the class .described cora. prising a trame; a die; a stationary piercing plunger arranged centrally in said die ayielding die head surrounding said plunger in said die; a movable piercing plunger arranged to force blanks into said die and coperate with said stationary plunger to embed their ends therein; a cooperating movable diehead 'surrounding said movable plunger arranged to enter said die and compress blanks therein; means for simultaneously moving said die heads relatively to said plungers; and means for presenting nut blanks to said die, substantially as described. f

9. A machine of the class describedcomprising a frame; a die; a stationary iercing plungenarranged centrally in saidp die; a yielding die head surrounding said plunger in said die; a movable piercing plunger arranged to force nut blanks into said die and cooperate With said stationary plunger to embed their ends therein; av coperating movable die head surrounding said movable plunger, arranged to lenter said die and compress blanks therein; a yieldable abutment arranged to limit the movement of said yielding die head; and means for simultaneously moving said die heads relatively to said plungers to edect contact between said yielding die head and said abutment; and means for presenting nut blanks to said die, substantially as described.

y lin testimony 'Whereof'li have signed my name to this spechcation in the tvvo subscribing witnesses.

CHLES E. SLYKE.

presence ot 

